Francis mossman pierce



(No Model.)

I M PIERCE ULEVIS FOR WHIFFLETREES.

No. 433,091. Patented July 29, 1890.

UNTTED STATES PATENT OFFIcE.

FRANCIS MOSSMAN PIERCE, OF OMAHA, NEBRASKA, ASSIGNOR OF ONE-THIRD TOPAUL PIERCE, OF SAME PLACE.

CLEVIS FOR WHIFFLETREESa SPECIFICATION forming part of Letters PatentNo. 433,091, dated July 29, 1890.

Application filed April 28, 1890. Scria1N0.349,708. (N model.

To all whom it may concern: the donbletreeas, forinstance,aloop for en-Be it known that I, FRANCIS MossMAN circling the end of the tree maybeformed in PIERCE, a citizen of the United States, residlieu of thethreaded shank, as will be obvious. ing at Omaha, in the county ofDouglas and 11 represents the connecting-bolt, which at 5 State ofNebraska, have invented a new and its front end depends slightly,forming a head useful Clevis, of which the following is a 12, having atransverse circular opening 13. specification. At its opposite end thebolt 11 is provided This invention has relation to a draft-conwith anelbow-shaped lug Li, of cylindrical nection, and is especially designedfor use in shape in cross-section, the elbow being slightly 1oconnecting double and single trees. curved, whereby by holding the boltin a ver- The objects of the invention are to provide tical position theend of thelug may be passed an exceedingly cheap and simple device,afinto the opening7 of the eyebolt, after which fording a safe andstrong connection between the bolt 11 may be turned so that the lowerdouble and single trees, said connection being L portion of the bolttakes under the double- 15 so constructed as to obviate loose parts, totake tree, as shown, such construction doubling all Wear from thedoubletree, and permit of a the strength of the ordinary straight lug.ready disconnection of the two trees, and yet 15 represents an ordinarysingletree conavoid any accidental disconnection of the two. nected atits center by the usual shackle 16 \Vith the above general objects inview the to the eye 13 of the connecting-bolt. The 2o invention consistsin certain features of conlower rear portion of the dependinghead 12 ofstruction hereinafter specified, and particuthe bolt 11 is squared,forming a shoulder 17, larly point-ed out in the claims. which shoulderis adapted to abut against the Referring to the drawings, Figure 1 is asquared shoulder 8 of the eyebolt 4:, and thus plan of a double andsingle tree connected in prevent the connecting-bolt 11 from turning 25accordance with my invention. Fig. 2 is a outwardly beyond said shoulder8. The obtransverse section taken to one side of the ject of theseshoulders and consequent limiconnection. Fig. 3 is a detail inperspective 'tation of the outward swing of the connectingof the eye orconnecting bolt. Fig. 4 is a simibolt is to prevent any accidentaldisconnec lar view of the locking-bolt. tion of the connectingbolt fromthe eyebolt, 0 Like numerals of reference indicate like should thesingletree and doubletrees drag parts in all the figures of thedrawings. upon the ground, as is sometimes the case,

ldesignates anordinarydoubletree attached and the only possible way inwhich the disto any vehicle, farm implement, or other obconnection canbe successfully accomplished ject to which draft is to be applied, andnear is by turning the connecting-bolt 1linwardly 8 5 3 5 the ends ofsaid doubletree the same is proagainst and parallel with the doubletreeand vided with transverse perforations 2, the front raising said bolt toa vertical position and ends of which are flared, as at 3. withdrawingin the same manner, but retdesignates the eyebolt, and the samecomversely to the operation described, whereby prises a threaded shankportion 5 and a head the bolt 11 may be inserted. 9

4o (3, the latter being provided with a circular By the connectionherein described it will opening '7, and at one side of the same and atbe observed that loose parts are obviated and that side nextto the endof the doubletree all wear and chafing of the parts upon the providedwithasquare shoulderS. The shank doubletree are carefully avoided and amost 5 is passed through the opening 2, after which efficient anddurable connection is provided.

5 there is mounted upon the opposite end of the Itwill be observed thatthe line of draft is shank a washer 9 and binding-nut 10, which directfrom the eye 13 to the eye 7, but must secure the eyebolt in position,the head 6 of be eifected through the neck of the connectsaid boltresting within the flared end or ing-bolt, which I therefore slightlythicken, mouth of the opening 2 and being thereby in order that it maywithstand the strain. r00

50 prevented from turning. Other means may By the peculiar form or shapeof the elbowbe employed for connecting the eyebolt to lug it will beapparent that its strength far surpasses an ordinary draft-hook. dinaryhook when a certain amount of power has been applied, said hook willstraighten and pull out; but in my peculiarly-shaped lug it would haveto bend at the opposite elbows; hence I secure double the strength overthe ordinary hook. 1

Having thus described my invention, what I claim is 1. Theherein-described draftconnection, consisting of the bolt 4, having thethreaded body at one end and the opposite end provided With a head 6,having the transverse opening 7, and the bolt 11, terminating at itsfront end in a head having an eye and at its opposite or rear end in anelbow-shaped depending and rearwardly-extending lockinglug adapted toenter the eye of the bolt 4, substantially as specified.

2. The combination, with the doubletree having the transverse opening,of the eyebolt, the shank of which is passed through the opening, saidbolt terminating at its front end in a head having a circular opening,the connecting-bolt provided at its front end with a head having anopening, and in rear of the same with a depending andrearwardly-extending elbow-lug adapted to enter and interlock with theeye of the first-mentioned bolt and the singletree, the shackle of whichis connected to the eye of the connecting-bolt, substantially asspecified.

3. The combination, with the doubletree In the orr having the transverseopening, of the eyebolt mounted in the opening and terminating at itsfront end in a fiared head having a circular opening, the outer frontportion of the head being flared to form a shoulder, the connecting-boltterminating at its front end in a head having an opening, the lower rearcorner of the head being squared to form a shoulder and abut against theshoulder of the eyebolt, and the rear end of said bolt being providedwith a depending and rearwardlyextending L-shaped lug interlocking withthe eye of the eyebolt, and the singletree, the shackle of which isconnected to the eye of the connecting-bolt, substantially as specified.

4. The combination, with the eyebolt terminating at its front end in aperforated head, of the connecting-bolt terminating at its front end ina perforated head and at its rear end in an L-shaped lug forinterlocking with the perforation of the eyebolt, and means forpreventing the said connecting-bolt being swung to the outer side of theeyebolt to such a degree as to withdraw its elbow from under thedoubletree, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signatnrein presence of two witnesses.

FRANCIS MOSSMAN PIERCE.

Vitnesses:

J. PHIPPs Ron, J. W. CULVER.

